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A merry go round consists of a flat disk mounted horizontally. A horse on the outer edge of the 6.5 m diameter disk goes from 1.54 m/s to .26 m/s as the disk turns 2.5 revolutions. What is the angular acceleration of the ride?
A 23 bullet traveling 245 penetrates a 3.0 block of wood and emerges cleanly at 195 .If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
What is the maximum force on a rod with a 0.100 uC charge that you pass between the poles of a 1.50 T strength permanent magnet at a speed of 5.00 m/s
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 degrees Celsius, How much heat |Q_H| is rejected to the room
A spherical ball of charge has radius R and total charge Q. The electric field strength inside the ball(r?R) is E(r)=Emax(r4/R4). Find an expression for the volume charge density ?(r) inside the ball as a function of r
A soccer ball is kicked with an initial horizontal velocity of 18.0 m/s, find How far from where it was kicked will the ball land
80 cm3 of water takes 12 min to cool from 40?C to 15?C in a draft; it is contained in a copper calorimeter of mass 150 g, Calculate the specific heat of the suspension in SI units
A 3.65 uf capacitor, a 9.25 uf capacitor, and a 6 V battery are connected in parallel to make a complete circuit. what is the voltage of each capacitor
A superwoman is travelling in a rocketcroft at a speed of 1.5 x10^ 8 m/s is holding a coffee cup that is 20 cm tall and 8 cm in diameter, What is the width of the cup in the direction of the travel
what is meant by 'net charge a. the total amount of positive charge of an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
The left ventricle of the heart accelerates blood from rest to a velocity of + 20.3 cm/s. How much time does blood take to reach its final velocity
A very long solenoid of circular cross section with radius R = 5.30 cm has n = 69.0 turns/cm. An electron is sitting just outside the solenoid, at a distance r = 5.80 cm from the solenoid axis. What is the magnitude of the force on the electron as..
Determine out the greatest possible angular speed it can have for the matter at the surface of the star on its equator to be just held in orbit by the gravitational force.
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